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SC5010 датащи(PDF) 4 Page - Semtech Corporation

номер детали SC5010
подробное описание детали  High Effi ciency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
PDF  36 Pages
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производитель  SEMTECH [Semtech Corporation]
домашняя страница  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC5010 датащи(HTML) 4 Page - Semtech Corporation

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SC5010
4
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Boost Converter
CS Current Limit Threshold
V
CS(ILIM)
0.36
0.40
0.44
V
Soft-start Time (1)
t
SS
From EN to end of soft start
4.4
ms
Boost Oscillator Frequency
F
SW
R
FSET
= 100kΩ
0.85
1
1.15
MHz
Boost Oscillator Frequency
F
OSC
R
FSET
Varies
0.2
2.2
MHz
Maximum duty cycle
D
MAX
85
90
%
Output Disconnect Gate Drive
DRVP Sink Current
I
DRVP(L)
DRVP = 12V
20
μA
DRVP clamp voltage
V
CLAMP
DRVP floating, V
CLAMP
= V
IN
- V
DRVP
57
8
V
DRVP Pin Leakage Current
I
LEAK
V
DRVP
= 27V, V
EN
= 0V
0.1
1
μA
Control Signals: EN, PWMI, SYNC, SDA, SCL
High Voltage Threshold
V
IH
V
CC
= 4.5V to 5.5V
2.1
V
Low Voltage Threshold
V
IL
V
CC
= 4.5V to 5.5V
0.8
V
SDA Output Low
V
SDA(L)
-6mA from V
CC
to SDA
0.3
V
Pin Leakage Current
I
LEAK
V
EN
= 0V, V
VSYNC
= V
PWMI
= V
ISET
= V
FSET
= V
SDA
= V
SDL
= 5.0V
-1
1
μA
PWM Dimming Input
PWMI Input Dimming Frequency
F
PWMI
100
30k
Hz
SYNC Input Frequency
F
SYNC
30
100k
Hz
PWMI Input Resolution
100Hz < F
PWMI
< 10kHz
10
bits
10kHz < F
PWMI
< 20kHz
9
bits
Over-Voltage Protection
OVP Trip Threshold Voltage
V
OVP(TRIG)
OVP Rising
1.1
1.2
1.3
V
OVP Hysteresis
V
OVP(HYS)
OVP Falling
10
mV
OVP Leakage Current
I
OVP(LEAK)
OVP = 5V
0.1
1
μA
Electrical Characteristics (continued)



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